Merge pull request #498 from enthought/fix/bar_plot_stacked_example

Fix stacked bar plot example
enthought · Jan 2, 2020 · 2000cd7 · 2000cd7
2 parents eabfe82 + dc24db1
commit 2000cd7
Showing 1 changed file with 7 additions and 3 deletions.
diff --git a/examples/demo/basic/bar_plot_stacked.py b/examples/demo/basic/bar_plot_stacked.py
@@ -11,7 +11,7 @@
 from traitsui.api import UItem, View
 
 # Chaco imports
-from chaco.api import LabelAxis, Plot, ArrayPlotData
+from chaco.api import LabelAxis, Plot, ArrayPlotData, ArrayDataSource
 
 class PlotExample(HasTraits):
     plot = Instance(Plot)
@@ -22,14 +22,18 @@ class PlotExample(HasTraits):
     def __init__(self, index, series_a, series_b, series_c, **kw):
         super(PlotExample, self).__init__(**kw)
 
+        # Stack them up
+        series_c = series_c + series_b + series_a
+        series_b = series_b + series_a
+
         plot_data = ArrayPlotData(index=index)
         plot_data.set_data('series_a', series_a)
         plot_data.set_data('series_b', series_b)
         plot_data.set_data('series_c', series_c)
         self.plot = Plot(plot_data)
         self.plot.plot(('index', 'series_a'), type='bar', bar_width=0.8, color='auto')
-        self.plot.plot(('index', 'series_b'), type='bar', bar_width=0.8, color='auto')
-        self.plot.plot(('index', 'series_c'), type='bar', bar_width=0.8, color='auto')
+        self.plot.plot(('index', 'series_b'), type='bar', bar_width=0.8, color='auto', starting_value=ArrayDataSource(series_a))
+        self.plot.plot(('index', 'series_c'), type='bar', bar_width=0.8, color='auto', starting_value=ArrayDataSource(series_b))
 
         # set the plot's value range to 0, otherwise it may pad too much
         self.plot.value_range.low = 0